baber/WOPTO huggingface dataset:
Patent DE-4022632-A1 (DE)
Title: Energy conversion system using rotary piston engine - d has arrangement for lowering temp. of working fluid
Inventor: ADAM WOLFGANG
IPC: F01K25/08
Filed: 1990-07-17
Abstract: Method of converting heat energy into mechanical energy by means of a rotary movement in which the working medium is a liquid gas and the power unit a rotary piston engine (2). The working medium is led from the engine to a cooler (3) where it is cooled to a second temperature lower than its first temperature and led back in liquid form to the chamber of a heater (1). ADVANTAGE - Engine in which additional means such as  a pump are not required to transfer the working medium from the cooler.
Patent DE-4025249-A1 (DE)
Title: Steel scrap DC arc furnace - has oval crucible with offset cathode, copper lined walls and enclosed feed chute
Inventor: KAFFANKE HUBERTUS DIPL ING
IPC: C21C5/52
Filed: 1990-08-09
Abstract: The steel crucible (1) is lined on the inside with a conducting firebrick layer to contain the melt. It has an oval shape with one end with an inlaid copper lining (7) and the other end having a location for the cathode (3). The scrap feed is via a closed tower (11) to allow the scrap to be pre-heated by the exhaust gasses taken off the crucible. The tower has retaining ledges (13) to hold the scrap above the melt for pre-heating. The conducting inlay is taken around the one narrow end of the crucible and forms the arc under the feed of the scrap for optimum heating. ADVANTAGE- Improved process, fixed position for feed chute.
Patent DE-4026544-A1 (DE)
Title: Light sensitive compsn. contg. -imino-diazo-quinone n-sulphonyl cpd. - and alkali-soluble polymer of positive type useful as resist
Inventor: SHINOZAKI FUMIAKI
IPC: G03F7/022
Filed: 1990-08-22
Abstract: Positive-type light sensitive compsn. contains an alkali-soluble polymer (I) and p-imidazoquinoneN-sulphonyl cpd(s) (II). Pref. (II) is added in an amt. of 0.1-0.7(wt) pts./pt. (I) (II) pref. is of formula (I) where R1-4 = H, halogen, CN a heterocyclic gp. -NR5R6, -SO2NR7R8 or a (substd) alkyl, alkoxy, aralkyl, alkaryl or alkenyl gp. R5-6 = H or a (substd) alkyl, aralkyl, alkaryl, alkenyl, or aryl gp. or NR5N6 = a heterocycle, R7 = 0 or opt. substd. alkyl, R8 = a (substd) alkyl, aryl, aralkyl, alkaryl, or alkenyl gp. R1 + R2 and/or RR3 + R4 may = one or two condensed carboxylic or heterocyclic rings, R = a (substd) aryl, aralkyl, alkaryl, or alkenyl, gp. n = 1, 2 or more. The compsn. may also contain a dyestuff borate complex (III) of the formula, D+ = cationic dyestuff, R9-12 a (substd) alkyl, aryl, aralkyl, alkaryl, alkenyl, or alicyclic gp. or a heterocyclic gp. USE/ADVANTAGE - The compsn. is useful for producing resists with a micro-pattern for ICs printing plates of non-Ag imaging materials. It has higher sensitivity than usual and gives higher contrast, making it suitable for replacing the conventional diazonaphthoquinone/novolak resin system.
Patent DE-4027982-A1 (DE)
Inventor: FINKENZELLER ULRICH DR
IPC: C09K19/00
Filed: 1990-09-04
Abstract: The invention concerns a liquid-crystal mixture for use in an electro-optical liquid-crystal system with the following properties: the system contains a dielectrically positive liquid-crystal mixture and another optically transparent material between two electrodes which may optionally be mounted on substrate plates. The liquid-crystal molecules are irregularly oriented when the liquid crystal is "off". One of the refractive indices of the liquid-crystal mixture is substantially the same as that of the nM matrix and/or the ratio of the mass of the liquid-crystal mixture to that of the optically transparent material is 1.5 or more. Transmission in one of the two switching states of the system is less than in the other state, irrespective of the polarization of the incident light. The system is characterized in that, in order to reduce the solubility and/or the temperature dependence of the solubility of the liquid-crystal mixture and/or one or more components of the liquid crystal in the matrix material, the liquid-crystal mixture is made up of liquid-crystal compounds with a mean double-refraction index DELTA n such that 0.09  </=   DELTA n  </=  0.20 (20  DEG C, 589 nm).
Patent DE-4028012-A1 (DE)
Title: Container for transporting and storing workpieces - has two end pieces with at least one outer marking to ensure correct positioning
Inventor: BOLEY DIETER DR ING
IPC: B65D85/62
Filed: 1990-09-04
Abstract: The container for transporting and/or storing workpieces (7) can be divided in the longitudinal direction and consists of an upper and lower part. Two end pieces (3) are provided with an outside contour whose smallest dia. is larger than that of the upper and lower part. At least one of the end pieces has markings (4) and the two end pieces are connected to the upper and lower parts so that the markings have a predetermined position relative to the inside contour of the upper edge of the lower part. The end pieces can hold the upper and lower parts together. USE/ADVANTAGE - Various types of workpieces can be stored in rational manner and the containers are easily stackable.
Patent DE-4032453-A1 (DE)
Title: Filling tank with dangerous liq. - with arrangement of valves which are operated to prevent dangerous emissions
Inventor: OTTE ERNST
IPC: B67D7/04
Filed: 1990-10-12
Abstract: The tank (1) is filled with a toxic or otherwise dangerous liq. especially a liq. with a high vapour pressure, using a system which prevents the emission of any dangerous vapour. The tank is filled with the liq. through a pipe (2) which is connected to the tank through a three-way valve (8). Any vapour is drawn off through the suction pipe (4) which is connected to the tank through a second three-way valve. When filling the tank the first three-way valve (8) connects the filler pipe (2) to the tank, the second three-way valve (9) connects the suction pipe (4) to the tank whilst the connection (10) between the valves is closed. When flushing the pipes with nitrogen, the filler and suction pipes are shut off, the tank and the connection (10) between the valves (8,9) is open. USE/ADVANTAGE - Filling a tank with a dangerous liq. The system prevents the emission of dangerous vapour.
Patent DE-4033394-A1 (DE)
Title: Magnetic rod in form of permanent magnet or electromagnet - converting reciprocating movement in to rotational movement in vehicle
Inventor: GOERES HANS DIETER WILHELM
IPC: H02K7/075
Filed: 1990-10-20
Abstract: The magnetic arm with one of its ends in a vertical position, is provided at its other end with an independent, auxiliary or special conducting wire winding, for the reception of a DC current surge to be applied, until it reaches over the centre of the magnetic arm or rod. A solid ring or a thick single current loop sits on the magnetic arm or rod, which with lateral rods is connected securely to a crosshead embedded in a guide, for the piston connecting rod at the crank. With a short switching on or a current surge with DC at the strong auxiliary winding, a powerful thrust movement results for the ring or the loop. This ring or loop is short circuited, and as a consequence, receives electromagnetically the current pulse with a phase difference of 180 deg., which has a 100 percent. opposed supporting field, and afterwards, without current and with opening and thus non-conducting is returned to its initial position. USE/ADVANTAGE - Magnetic arm for converting reciprocating movement of engine to rotational movement. Super conductors can be dispensed with. Prevents outward scatter of field lines. Several independent rings can be used.
Patent DE-4035360-A1 (DE)
Title: Liquid crystal display cell - has precious metal layer overlying conductor path pattern carried by projecting part of larger surface area plate
Inventor: CONIGLIO ALDO
IPC: G02F1/1343
Filed: 1990-11-07
Abstract: The display cell has a liquid crystal layer sandwiched between a relatively large and a relatively small surface area glass plate (1,5), the conductor paths (8) carried by the projecting part (3) of the larger surface area glass plate (1) comprising an indicia tin oxide layer and a vapour deposited nickel layer. A precious metal layer is applied over the nickel layer of at least part of the conductor path pattern carried by the projecting part (3). Preferably, circuit components (9) are applied to the conductor path pattern after application of the precious metal layer. ADVANTAGE - Improved conductivity and resistance characteristics.
Patent DE-4037575-A1 (DE)
Inventor: FRITZSON JOACHIM
IPC: B65H63/032
Filed: 1990-11-26
Abstract: In an optical sensing device for a thread (Y) moved almost transversely to its longitudinal direction, especially for the thread spool (V) consisting of unseparated thread turns in a thread storage and feed device (F) in which there are a light source (2) aimed at a predetermined passage region (P) for the thread (Y) and a receiver (3) directed at diffuse light (6) reflected from the thread in the passage region, a screening device (9, 10) faces away from the light source (2) in the passage region (P) and is arranged beneath the thread (Y) which is so constructed or arranged that it does not reflect the light (4) from the light source (2) to the receiver (3) and does not allow light reflected from areas or objects (L) on the other side of the screening device (9) to reach the receiver (3).
Patent DE-4041445-A1 (DE)
Title: Safety arrangement for coal-charging closure system in pressure gas generator - has bunker shut=off slide plate arranged between upper sealing and lower support ring
Inventor: REICHL EMIL
IPC: C10J3/30
Filed: 1990-12-21
Abstract: Safety arrangement in the coal-charging closure system of pressure-type gas generators that operate on brown-coal briquettes with or without mixing them with raw lignite. The closure system has a bunker shut-off slide plate, closure head and coal sluice; the closure head is inerted by continuous flushing with safety gas. The sliding plate of the bunker shut-off slide-valve is arranged between an upper sealing ring and a lower support ring. USE/ADVANTAGE - The arrangement ensures safe charging of fuel, without interruption, into pressure-type static gasifiers. The bunker is partially inerted, and gas from the closure system is prevented from entering it.
Patent DE-4041865-A1 (DE)
Title: Cigarette packing machine with bobbins of wrapping material - has bobbin transfer unit with intersliding jaws
Inventor: KNECHT SIEGFRIED
IPC: B65H19/12
Filed: 1990-12-27
Abstract: The packing machine for cigarettes and similar has a transfer device (38) for bobbins (2) of wrapping material each provided with a core sleeve (3) and set ready on pallets. The transfer device has a bobbin conveyor with conveyor arm supporting a pick-up member (21) for a bobbin. The pick-up member (21) and holder (1) are designed as jaw grippers whereby the jaws (4,20) of the pick-up member (21) and the holders (1) can be slid between each other like forks. The holders (1) can each be rotated about their axis by means of a rotary drive and are provided with a device for setting a jaw position in which the jaws of the pick-up member can be slid between the jaws (4) of each holder (1). ADVANTAGE - Simple transfer of the bobbins to their holders.
Patent DE-4105607-A1 (DE)
Title: Drawing liq. samples from waste-water treatment plant - dividing outflow into separate sample collectors associated with compartments of tub tilted about axis
Inventor: WOLSCHNER HEINZ DIPL ING
IPC: G01N1/18
Filed: 1991-02-22
Abstract: Waste-water is piped (7) into a filtration chamber (1) assembled from concrete rings (2) and contg. a stack of porous concrete trays (3) holding two layers (4, 5). Above the uppermost tray a tub (11) is tiltable about a horizontal axis on bearings (12). Each compartment of the tub (11) discharges through a line (23) into a sample collector (24). The number of tilting operations is monitored by a counter (30) with a finger (31) cooperating with the middle wall (17) of the tub (11). ADVANTAGE - Sampling from representative cross-section of outfall with pref. precisely defined fraction of vol guaranteed.
Patent DE-4105669-A1 (DE)
Inventor: BARTELS OLIVER
IPC: G06N3/063
Filed: 1991-02-22
Abstract: In a weighting network, input signals (e1, e2, ...el, ...ei) are transmitted over weighting devices (G11, G12, ...G1l, ...G1i) to an adding device (S1). The output signal of the adding device (S1) is transmitted to a variable delay delaying device (D1) connected downstream thereto. The delay is adjusted depending on a comparison carried by a comparator (C1) between the value of the output signal of the adding device (S1) and a reference signal (R). This weighting network advantageously allows the output signal of the adding device (S1) to be retransmitted by the delaying device (D1) with a slight delay when the value of the output signal of the adding device (S1) is very near to the reference signal (R). At reduced values of the output signal of the adding arrangement (S), this signal is outputted with a corresponding delay at the output of the delaying device (D1).
Patent DE-4108319-A1 (DE)
Title: Spent residues from brewing used as cattle feed additive - by mixing with starch rich vegetable feed material or molasses
Inventor: KIRMAIR LORENZ
IPC: A23K10/33
Filed: 1991-03-14
Abstract: Spent residue, esp. beer grains, or brewer's yeast is processed into a cattle feed similar to feed concentrates, by adding a starch-rich vegetable feed material with a dry solids content of more than 80%, pref. more than 90%, or molasses from vegetable or animal prods. to the beer grains or brewer's yeast. Pref. the additive is solubilised in the brewing residues by swelling under heat, esp. utilising the inherent heat of the brewing residues. The addn. is pref. made into the collection zone of the beer grains liquor, esp. into the lower section of the collection vessel for the spent residue, or the additive may be distributed over the bottom of the spent residue collection vessel prior to introducing the spent liquor. USE/ADVANTAGE - Process provides a cheap and simple means of processing a waste prod. from the brewing of beer into a high grade cattle feed similar to feed concentrates.
Patent DE-4118870-A1 (DE)
Inventor: SEEGER HANSPETER
IPC: B01F25/64
Filed: 1991-06-07
Abstract: A device for dispersing, emulsifying of suspending gasses, liquids or granulated substances, in particular for wetting and dispersing powders in liquids, has a disk-shaped rotor (8) arranged in a dispersion chamber (7), two substance inlets (72, 76) and one product outlet (11). On each side of the rotor (8) each substance inlet (72, 76) is preferably provided with an axial channel section (75, 83) and both substance streams are united in the outer marginal zone of the rotor disk (67), whereas the product outlet (11) is arranged at the outer edge of the wetting chamber (7).
Patent DE-4119076-A1 (DE)
Title: Automatic transmission ratio control operable by manual commands - affords third operational mode involving prodn. of signals for changing up and down with gear lever
Inventor: SAKAMOTO KENICHI
IPC: F16H61/24
Filed: 1991-06-10
Abstract: A hydraulic pressure control coil (44), a locking coil (56), two gear-shift coils (64,66) and an overdrive engagement coil (82) are energised through an interface (316) from a control computer (313). Signals are applied from sensors of engine and gearbox input and output shaft speeds (301; 309, 302), throttle flap position (303), selector lever position (304) and lubricant temp. (308). Switches provide for kickdown (305), idling (306), full throttle (307), overdrive (310), operational mode selection (391), and manual gear changes, up (393) and down (395)- not effective in either automatic mode. ADVANTAGE - Manual operation of automatic gearbox is simplified as alternative to automatic economical or ''sporty'' driving.
Patent DE-4121860-A1 (DE)
Title: Device for intravenous injection of fluids - is fitted with filter to filter fluid before it reaches patient
Inventor: POLSAK HANS DR
IPC: A61M5/14
Filed: 1991-07-02
Abstract: A device (10) for the intravenous injection of a fluid, into a patient, is of tubular form with an inlet tube (12) of reduced diameter at the upper end. The inlet tube has a pointed end (16) and is fitted with a cover (14) to maintain the contents in a sterile condition. The lower end (26) of the device is also of reduced diameter and is connected to the patient by a tube. The flow to the patient is regulated by a valve (28). The body of the device is divided into two chambers (20, 24) by a filter (22). The device is made of flexible material and when the body is compressed a suction effect is created which causes the fluid to flow through the filter which retains any solid matter (30). USE/ADVANTAGE - Intravenous injection of saline or sugar solutions etc. The device ensures that the solutions are maintained in a sterile condition.
Patent DE-4124976-A1 (DE)
Title: Butt welding metal foil - by precoating seam area with flux to prevent oxide film formation
Inventor: WAGNER ALBERT
IPC: B23K26/60
Filed: 1991-07-27
Abstract: Foil or metal workpieces (21, 22) are butt-welded together by coating the area of the seam with a flux (25) prior to heating. The welding is effected by a laser beam (26). The flux can be coated on by spraying or painting etc.. USE/ADVANTAGE - Esp. for foil used to cover a roller in a printing machine. The flux prevents an oxide coating developing over the joint which would cause recesses (17) and protrusions (19).
Patent DE-4126248-A1 (DE)
Title: Reconditioning smooth cylinder e.g. hydraulic rams - by machining outside, winding thin metal sheet spirally round it, applying e.g. epoxy] resin pressing on and finally dressing if necessary
Inventor: SCHLEICH HANNS-WERNER
IPC: B23P6/02
Filed: 1991-08-08
Abstract: Cylinders or similar components with a smooth surface are reconditioned by first mechanical machining (e.g. turning) the outside, then applying a metal sheet of thickness somewhat greater than that removed by the machining and fixing it on the ram, machining the new surface and giving it a fine finish if required. Adhesive is applied to the basic ram and/or the added sheet before and while the sheet is applied and the sheet is pressed on to the basic cylinder at the same time. The adhesive is pref. an epoxide resin and is applied to the surface after the latter has been heated up. ADVANTAGE - The method and equipment used apply the metal sheet uniformly and swiftly. The thickness of material removed by turning is very thin. The process can be used for widely differing materials.
Patent DE-4126647-A1 (DE)
Title: Removal of trapped material for gate supply of small power stations - with trapped material directed to run-off channel via interlinked secondary grid or chain bucket system
Inventor: SCHROETER HEINRICH
IPC: F03B17/06
Filed: 1991-07-24
Abstract: With rotational traps, material is lifted to just below the surface and trapped by a second grid (2). This second grid forms the side wall of a run-off channel (1), which has a barrier at one end (3). Periodically, the second grid is released and the barrier (3) opened. Trapped material and water flow through the channel and away. On vertical traps, a continuous bucket chain lifts material into the channel. USE/ADVANTAGE - Solids trap for power station water supply removes the need for trapped material to be lifted above water surface for its removal.
Patent DE-4129053-A1 (DE)
Title: Controlling inverter-fed synchronous machine drive - using decoupling transformation to calculate stator flux components for two axes from electric torque and stator flux linkage
Inventor: KLEINKAUF WERNER PROF DR ING
IPC: H02P21/12
Filed: 1991-09-02
Abstract: The control method establishes the electric torque (21) and the magnitude of the stator flux (26) with the help of a decoupling transformation (11). The decoupling transformation calculates the nominal values (19,20) for the stator flux (3) components with regard to the field current (23) or stator current, or a combination of both, from the nominal values (18,17) for torque (27) and stator flux linkage. The nominal stator flux components may also be calculated from the nominal values of torque and stator voltage with additional regard to rotation speed (29) or frequency. The stator flux linkage is evaluated from the stator voltages(4) and currents or only approximately from the voltages alone. ADVANTAGE - Improvement of dynamic control properties
Patent DE-4130979-A1 (DE)
Title: Car seat with squab,backrest and underframe - has squab driving rod with two flat sections for lower seat frame during cornering.
Inventor: SCHMIDT BERND DIPL ING
IPC: B60N2/18
Filed: 1991-09-18
Abstract: The lower frame is fastened via a rear pivot axis to a frame part on the vehicle floor. A device to adjust the angle of inclination of the squab has two toothed racks near the front edge of the squab  and a driving rod. Teeth of the rod mesh with the toothed racks. A pressure element acts on the rod. The driving rod (25) has two opposite flat sections, which are located at an angle to the plane enclosed by the teeth (26). In a support point (34) for the lower frame (11), which is located near the toothed rack (24) engaging only one rod tooth, the lower frame rests on one of the flat sections. They extend here approx. parallel to the lower frame. USE/ADVANTAGE - For increased comfort during cornering or load shift,with improved incline adjustment and drive rod securing.
Patent DE-4132869-A1 (DE)
Title: Suction head for vacuum cleaner - has air turbine drive for rotating floor-brush and single-piece moulding for turbine chamber and suction tube socket.
IPC: A47L9/04
Filed: 1991-10-03
Abstract: The suction head (1) for vacuum cleaner includes a housing (2) with an intake aperture (4) and connection socket (8) which is coupled to a suction tube (15) via the connector (14) to form a continuous air circuit exhausted by the vacuum cleaner. A rotating brush (6) at floor level (3) is driven by a belt-connected air turbine (18) impelled by the intake airflow and mounted in a turbine chamber (5) moulded integrally with the connection socket (8). Vertical movements of the suction tube (15) are accommodated by a housing (2) aperture (9) which allows the tube (15) and turbine chamber (5) to pivot about the axis (20). USE/ADVANTAGE - Simply constructed and easily handled device which is readily manufactured and assembled. Reduced cost than universal jointed alternatives.
Patent DE-4137253-A1 (DE)
Title: Dust sensor, esp. for metallic or non-metallic fine dust - has electrically conducting filter fleece with conductivity dependent on dust particles in pores, and metal covering layer
Inventor: EIFERT HARALD DIPL PHYS
IPC: G01N15/06
Filed: 1991-11-13
Abstract: The dust sensor has an electrically conducting filter fleece with a gas transmitting, porous structure. The electrical conductivity of the fleece is influenced by the size and quantity of the dust particles held in the pores. The filter fleece can be a porous base (2) with a metal covering layer (3). The metal layer can be a layer of metal powder deposited onto the base. USE/ADVANTAGE - For use in controlling dust in ambient air in various industrial processes, e.g. clean rooms for semiconductor processing, or for control of combustion emissions. Continuous measurement of dust content depending on dust particle size is achieved and warning function performed.
Patent DE-4200266-A1 (DE)
Inventor: CAMPA UGO
IPC: A23L3/04
Filed: 1992-01-08
Abstract: Method of sterilising food and dishes prepared in containers and which are ready to eat or are intended to be stored, without the use of refrigeration, but purely by means of the equipment (4 to 10) which automatically and hermetically closes the containers (3) and by means of a conveyor (2) which conveys them into the tunnels (7 to 9).   This method employs means for sterilising the containers (3) without removing them from the conveyor belt. <IMAGE>